body {
  font-family: Arial, sans-serif;
  background-color: #f7f7f7;
  margin: 0;
  padding: 0;
}

.container {
  width: 90%;
  max-width: 1000px;
  margin: 40px auto;
  background: #fff;
  padding: 20px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}